138177366 has 8 divisors (see below), whose sum is σ = 276354744. Its totient is φ = 46059120.

The previous prime is 138177341. The next prime is 138177379. The reversal of 138177366 is 663771831.

138177366 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

138177366 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11514775 + ... + 11514786.

It is an arithmetic number, because the mean of its divisors is an integer number (34544343).

Almost surely, 2^138177366 is an apocalyptic number.

138177366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138177366 is a wasteful number, since it uses less digits than its factorization.

138177366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23029566.

The product of its digits is 127008, while the sum is 42.

The square root of 138177366 is about 11754.8868986477. The cubic root of 138177366 is about 516.9862230340.

The spelling of 138177366 in words is "one hundred thirty-eight million, one hundred seventy-seven thousand, three hundred sixty-six".